www.xinhuanet.com
XINHUA online
CHINA VIEW
VIEW CHINA
 Breaking News 2 French hostages freed in Iraq     Iraqi militant group frees 2 French hostages -- Al Jazeera    Pentagon says at least 22 killed in Mosul    Mozambican ruling party's Guebuza wins presidential election    Explosion rocks US military base in northern Iraq    Blair arrives in Baghdad to meet Iraq's Allawi    
Home  
China  
World  
Business  
Technology  
Opinion  
Culture/Edu  
Sports  
Entertainment  
Metrolife  
Travel  
Weather  
  About China
  Map
  History
  Constitution
  CPC & Other Parties
  State Organs
  Local Leadership
  White Papers
  Statistics
  Major Projects
  English Websites
  BizChina
- Conferences & Exhibitions
- Investment
- Bidding
- Enterprises
- Policy update
- Technological & Economic Development Zones
Source Manufacturers and Suppliers from China and around the world
   News Photos Voice People BizChina Feature About us   
Gene links to lung cancer
www.chinaview.cn 2004-12-22 09:09:04

    BEIJING, Dec. 22 -- Lung cancer may run through family members, researchers said but without denying tobacco smoke as the main cause of such a disease.

    
Lung cancer appears to run in families, researchers said on Tuesday, though exposure to tobacco smoke is still the dominant cause of the disease even for those who may be genetically predisposed.
Lung cancer appears to run in families, researchers said on Tuesday, though exposure to tobacco smoke is still the dominant cause of the disease even for those who may be genetically predisposed.
Researchers from Landspitali-University Hospital in Reykjavik, Iceland had released a report that genetic link might be a cause to the terrible disease -- lung cancer.

    The strongest family link was found in the relatives of patients who developed the disease at age 60 or younger. The parents of such people had nearly a three and one-half times higher risk of also developing the disease compared to the general population, the report said.

    For brothers and sisters in such cases the risk was more than three times higher and for children slightly less than that.

    The genetic risk of lung cancer may run beyond the immediate family, said the report. Aunts and uncles, cousins, nieces and nephews of lung cancer victims of any age also run a higher risk, though at lower levels than the immediate family.

    The Icelandic researchers said they traced the genetic links by looking at all 2,756 patients diagnosed with lung cancer in the country from 1955 to 2002 and linking them with an extensive genealogical database containing all living Icelanders and most of their ancestors since the settlement of the country.

    "The nationwide genealogy database used in our study provided a means for uncovering the familial component by revealing more connections between patients, missed in most other populations," the study said.

    Lung cancer is the leading cause of cancer deaths among men and women in many Western countries, said the study, published in this week's Journal of the American Medical Association, and smokers comprise about 90 percent of all cases. Enditem

    (Agencies)

  Related Story
Copyright ©2003 Xinhua News Agency. All rights reserved.
Reproduction in whole or in part without permission is prohibited.